Tension screw lets you adjust for a firm or easier draw. The model X647 can be worn in a vertical or horizontal carry. Non-glare black snap closure. Fits belts up to 2.25''. Phoenix Advantage-Plus is the best looking nylon gear ever, and built to last. Abrasion and moisture resistant. Hard shell molded. Fits GLOCK 20, 21, 29, 30; H+K USP .45, (not Compact); PARA-ORDNANCE (not P10); KIMBER Polymer.